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Article
Publication date: 16 December 2022

Yuwei Sun and Jon Billsberry

The purpose of this review is to argue that the way that perceived employee misfit (PEM) has been measured in quantitative studies does not capture the construct identified in…

Abstract

Purpose

The purpose of this review is to argue that the way that perceived employee misfit (PEM) has been measured in quantitative studies does not capture the construct identified in qualitative studies.

Design/methodology/approach

Through reverse citation analysis, this study reveals how low levels of value congruence became the currency of PEM in quantitative studies.

Findings

This study finds that in the absence of alternatives, researchers have taken low scores of value congruence as a measure of misfit. However, there is limited evidence to show that PEM relates to values, supplementary conceptualization or interactions with the organization (rather than interactions with other employees, tasks, etc.). In addition, the most commonly used instruments measure degrees of similarity, not disparity, making the interpretation of PEM-related data unclear. Combined, these factors raise construct validity concerns about most quantitative studies of PEM.

Research limitations/implications

Given the upsurge of interest in PEM, there is an urgent need for greater clarification on the nature of the construct. From the analysis, this study identifies two key dimensions of studying PEM that create four distinctly different ways of conceptualizing the construct.

Originality/value

This study highlights a series of major methodological weaknesses in the study of PEM and reveal that almost all published quantitative studies of PEM are actually studying something else; something whose nature is very unclear.

Article
Publication date: 22 December 2020

Abul Bashar, Ahsan Akhtar Hasin and Nadim Jahangir

The purpose of this paper is to explore an empirical investigation of the linkage between total productive maintenance (TPM), people management (PEM) and organizational…

Abstract

Purpose

The purpose of this paper is to explore an empirical investigation of the linkage between total productive maintenance (TPM), people management (PEM) and organizational performance in the apparel industry of Bangladesh. This study also explores the direct and mediating effect of TPM on organizational performance.

Design/methodology/approach

Empirical data were collected using a close-ended structured questionnaire from 227 small, medium and large-scale garment manufacturing industries. The causal relationships between PEM, TPM and organizational performance were examined using structural equation modeling.

Findings

The findings of this study have provided significant evidence that the PEM has both direct and indirect impact (through TPM) on organizational performance. The results of the analysis also indicated that TPM has direct and mediating effects on operational performance.

Research limitations/implications

Data for measuring PEM practices and organizational performance were collected from the same source, assuming that PEM practices are uniform across the organization. Therefore, response bias is not unexpected.

Originality/value

This study explores the interdimensional linkage between PEM, TPM and organizational performance and argues based on the empirical data in the context of the apparel industry in Bangladesh. The apparel industry is a complex manufacturing system synchronizing man, machine and material. The findings provide empirical evidence that employee engagement and practice of TPM will enhance the operational performance of the apparel industries.

Details

Journal of Quality in Maintenance Engineering, vol. 28 no. 2
Type: Research Article
ISSN: 1355-2511

Keywords

Article
Publication date: 6 July 2015

Arno Thielens, Sam Agneessens, Günter Vermeeren, Leen Verloock, Hendrik Rogier, Luc Martens and Wout Joseph

The purpose of this paper is to numerically determine the distribution of electric fields registered by a personal exposimeter (PEM) used for the Global System for Mobile…

Abstract

Purpose

The purpose of this paper is to numerically determine the distribution of electric fields registered by a personal exposimeter (PEM) used for the Global System for Mobile Communications (GSM) around 900 MHz (GSM900) downlink (DL) band and compare these with calibration measurements of PEMs worn by real human subjects.

Design/methodology/approach

Numerical simulations using the Virtual Family Male (VFM) are carried out at 950 MHz in order to determine the electric fields surrounding the phantom in realistic, far-field environments. These electric fields can be used to determine the distribution of a PEM’s response when worn by the VFM. Simultaneously, calibration measurements in an anechoic chamber are carried out using a real PEM worn by two different subjects, in order to determine the PEM’s response experimentally.

Findings

Both the numerical simulations and the measurements show that a PEM will on average underestimate the incident electric fields in the GSM900 DL band and that the variation (expressed in terms of the 95 percent confidence interval and the interquartile distance) on its response is relatively large: a 95 percent confidence interval of 22 dB and an interquartile distance of 7.3 dB are found in a realistic environment using numerical simulations, while the calibration measurements show interquartile distances up to 12 dB. In terms of variation there is an excellent agreement between simulations and measurements.

Originality/value

This paper proves that numerical simulations may be used as a replacement for the more time- and work-consuming calibration measurements if the variation of a PEM’s response is studied.

Details

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, vol. 34 no. 4
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 1 December 1997

E.B. Hakim, J. Fink, S.M. Tam, P. McCluskey and M. Pecht

For many years, the concern over the use of plastic encapsulated microcircuits(PEMs) has been their capability to survive in harsh environments over a long termwith continuous or…

245

Abstract

For many years, the concern over the use of plastic encapsulated microcircuits (PEMs) has been their capability to survive in harsh environments over a long term with continuous or intermittent operation. The issues centred around operational life limitation, due to failure mechanisms associated with internal corrosion, wires and wire bonds, and surface effects, It has now been conclusively demonstrated that best commercial practices will ensure that PEMs made using best commercial materials, processes, and quality techniques will permit devices to perform reliably in the most severe environments. Missile systems are low volume production items, which use relatively few microcircuits. They are required to operate for very short times after being unpowered (dormant) for very long times (10 to 20 years) and exposed to humidity, temperature cycle, and mechanical shock. This paper will address reliability concerns and provide data from studies which were performed to determine if PEMs could survive such long‐term unbiased applications. These studies include analysis of PEMs (some date coded 1968) from inventory or various storage locations and from applications where the electronic modules containing PEMs were stored for 10‐12 years in various environments. Regardless of the storage conditions, the significant factor is that these early vintage commercial grade PEMs, without screening or incoming inspection, survived assembly and extended storage.

Details

Circuit World, vol. 23 no. 4
Type: Research Article
ISSN: 0305-6120

Keywords

Article
Publication date: 8 May 2018

Qing Xiao and Shaowu Zhou

Unscented transformation (UT) and point estimate method (PEM) are two efficient algorithms for probabilistic power flow (PPF) computation. This paper aims to show the relevance…

Abstract

Purpose

Unscented transformation (UT) and point estimate method (PEM) are two efficient algorithms for probabilistic power flow (PPF) computation. This paper aims to show the relevance between UT and PEM and to derive a rule to determine the accuracy controlling parameters for UT method.

Design/methodology/approach

The authors derive the underlying sampling strategies of UT and PEM and check them in different probability spaces, where quadrature nodes are selected.

Findings

Gauss-type quadrature rule can be used to determine the accuracy controlling parameters of UT. If UT method and PEM select quadrature nodes in two probability spaces related by a linear transform, these two algorithms are equivalent.

Originality/value

It shows that UT method can be conveniently extended to (km + 1) scheme (k = 4; 6; : : : ) by Gauss-type quadrature rule.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 37 no. 3
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 29 April 2021

Timothy O. Olawumi and Daniel W.M. Chan

The purpose of this paper is to identify the key facilitating factors for smart sustainable practices (SSP) and develop a project evaluation model (PEM) for SSP implementation in…

Abstract

Purpose

The purpose of this paper is to identify the key facilitating factors for smart sustainable practices (SSP) and develop a project evaluation model (PEM) for SSP implementation in Nigeria and Hong Kong. SSP is coined from the integration of digital technologies such as Building Information Modelling (BIM) to facilitate sustainability practices.

Design/methodology/approach

The study employed a quantitative research design approach using empirical questionnaire surveys to solicit the opinions of 69 and 97 construction practitioners in Nigeria and Hong Kong. Purposive and snowball sampling techniques were used to identify the potential survey respondents. The fuzzy synthetic evaluation technique was used to develop the PEMs.

Findings

The findings revealed that adequate technical expertise of the SSP processes is critical in enhancing its implementation in Hong Kong and Nigeria; as well as the provision of training programs for specialists in smart and sustainable initiatives. Meanwhile, the study's findings advocated that for an SSP-enabled construction project, its project performance is mainly influenced by the client's satisfaction level and the early involvement of the project teams.

Research limitations/implications

The study's results are limited to the Nigeria and Hong Kong construction industries.

Practical implications

Construction stakeholders such as the clients, developers, contractors can utilize the PEMs to determine and track SSP initiatives implementation in building projects in a reliable and practical way.

Originality/value

No tool has been developed for evaluating SSP initiatives at the project level in the construction industry. Using case studies of Hong Kong and Nigeria, PEM indices were developed to measure and track SSP implementation in construction projects.

Details

Engineering, Construction and Architectural Management, vol. 29 no. 3
Type: Research Article
ISSN: 0969-9988

Keywords

Article
Publication date: 26 August 2014

Ismaila B. Tijani, Rini Akmeliawati, Ari Legowo, Agus Budiyono and Asan G. Abdul Muthalif

The purpose of this paper is to develop a hybrid algorithm using differential evolution (DE) and prediction error modeling (PEM) for identification of small-scale autonomous…

Abstract

Purpose

The purpose of this paper is to develop a hybrid algorithm using differential evolution (DE) and prediction error modeling (PEM) for identification of small-scale autonomous helicopter state-space model.

Design/methodology/approach

In this study, flight data were collected and analyzed; MATLAB-based system identification algorithm was developed using DE and PEM; parameterized state-space model parameters were estimated using the developed algorithm and model dynamic analysis.

Findings

The proposed hybrid algorithm improves the performance of the PEM algorithm in the identification of an autonomous helicopter model. It gives better results when compared with conventional PEM algorithm inside MATLAB toolboxes.

Research limitations/implications

This study is applicable to only linearized state-space model.

Practical implications

The identification algorithm is expected to facilitate the required model development for model-based control design for autonomous helicopter development.

Originality/value

This study presents a novel hybrid algorithm for system identification of an autonomous helicopter model.

Details

Aircraft Engineering and Aerospace Technology: An International Journal, vol. 86 no. 5
Type: Research Article
ISSN: 0002-2667

Keywords

Article
Publication date: 24 August 2010

Z.C. Zhang, J.H. Lin, Y.H. Zhang, W.P. Howson and F.W. Williams

Purpose — The purpose of this paper is to present a new nonstationary, random vibration method for the analysis of coupled vehicle‐bridge systems with vertical track irregularity…

Abstract

Purpose — The purpose of this paper is to present a new nonstationary, random vibration method for the analysis of coupled vehicle‐bridge systems with vertical track irregularity. Design/methodology/approach — The vehicle is modeled using a two‐layer suspension system and hence possesses ten degrees of freedom. The bridge is simulated using a Bernoulli‐Euler beam and the longitudinal track irregularity is taken as a uniformly modulated, evolutionary random process that includes phase lags between successive wheels. The pseudo‐excitation method (PEM) is extended to include time‐dependent systems for the first time, thus making it possible to compute the nonstationary random vibration of coupled vehicle‐bridge systems. Additionally, the precise integration method (PIM) is adapted to simulate continuous vehicle force variations in both time and space. Findings — The accuracy and effectiveness of the proposed PEM‐PIM method are confirmed by comparisons with Monte Carlo simulations. The influence of vehicle speed and track irregularity on system random responses are evaluated, and it is shown that the first and second derivatives of the track irregularity should not be arbitrarily ignored, as is usually the case. Originality/valuePEM and PIM are relatively new tools for the numerical solution of complicated random vibration problems and direct dynamic analyses. Until now, they have only been applied to time‐independent systems. However, it is shown herein that the proposed PEM‐PIM method performs nonstationary random vibration analysis of time‐dependent coupled vehicle‐bridge systems efficiently and accurately.

Details

Engineering Computations, vol. 27 no. 6
Type: Research Article
ISSN: 0264-4401

Keywords

Article
Publication date: 10 June 2022

Minjuan Zhang, Ning Jing, Zhen Liu, Chunyang Li and Ning Zhang

An interferogram is produced by modulating the difference between the extraordinary refractive index and the ordinary refractive index for photoelastic crystals in…

Abstract

Purpose

An interferogram is produced by modulating the difference between the extraordinary refractive index and the ordinary refractive index for photoelastic crystals in photoelastic-modulated Fourier transform spectrometers (PEM-FTs). Due to the influence of the refractive index dispersion characteristics on the maximum optical path difference of the interferogram, it is necessary to study wavelength calibration methods.

Design/methodology/approach

A wavelength calibration method for PEM-FTs was proposed based on the modulation principle of the photoelastic-modulated interferometer and the relationship between the maximum optical path difference and the refractive index difference. A 632.8 nm narrow-pulse laser was used as a reference source to measure the maximum optical path difference () of the interferogram, and the parameter was used to calculate the discrete frequency points in the frequency domain. To account for the influence of refractive index dispersion on the maximum optical path difference, the refractive index curve for the photoelastic crystal was used to adjust the discrete frequency coordinates.

Findings

The error in the reconstructed spectral frequency coordinates clearly decreased. The maximum relative error was 2.5%. A good solar absorption spectrum was obtained with a PEM-FT experimental platform and the wavelength calibration method.

Originality/value

The interferogram is produced by adjusting the difference between extraordinary refractive index and ordinary refractive index for the photoelastic crystal in the PEM-FTs. Given the wavelength dependence on the refractive indices, in view of the modulation principle of the photoelastic modulated interferometer, the relationship between the maximum optical path difference and the refractive index difference, the variation law of the refractive index of the photoelastic crystal and the process of spectral reconstruction is presented in this paper.

Details

Sensor Review, vol. 42 no. 4
Type: Research Article
ISSN: 0260-2288

Keywords

Article
Publication date: 3 March 2016

Vaughan Reimers, Chih-Wei Chao and Sarah Gorman

While the Internet has emerged as a retail force to be reckoned with, its’ success is dependent, at least in part, on other promotional tools. One such tool is permission email…

9843

Abstract

Purpose

While the Internet has emerged as a retail force to be reckoned with, its’ success is dependent, at least in part, on other promotional tools. One such tool is permission email marketing (PEM). Operating within the framework of the Technology Acceptance Model (TAM), this study explores the influence of PEM on the perceived value derived from Internet shopping.

Design/methodology/approach

Data were collected through an online survey in Melbourne, Australia. Utilising a sample of 338 consumers, the resulting data was analysed using structural equation modelling.

Findings

The results of the study indicate that PEM positively influences the perceived usefulness, ease of use and enjoyment derived from shopping online. Furthermore, it also serves to reduce the perceived risk. PEM serves as an important extension of the TAM, with the findings from this study highlighting not only what the sources of online shopping value are, but also how they can be influenced.

Research limitations/implications

The limitation applies to the research context in which the study was carried out – fashion shopping.

Practical implications

The study confirms the importance of PEM and highlights to retailers that they have another important tool at their disposal.

Originality/value

This study highlights the importance of PEM and support the proposition that its key source of value lies in providing information that the consumer wants. Such relevance is the key of distinction between PEM and SPAM. Despite the rapid growth of Internet shopping in Australia, very few online shopping studies have been conducted in an Australian context. This study helps to address such an oversight.

Details

Asia Pacific Journal of Marketing and Logistics, vol. 28 no. 2
Type: Research Article
ISSN: 1355-5855

1 – 10 of 384